Attachment for machine guns



SR i fiwmh Emma 1934- L. w. M PHERSON 1,945,154

ATTACHMENT FOR MACHINE GUNS Filed July 26, 1932 2 Sheets-Sheet lINVENTOH ATTORNEY Jan. 30, 1934. L. w. MCPHERSQN' 1,945,154

ATTACHMENT FOR MACHINE GUNS Filed July 26. 1932 2 Sheets-Shet 2077|NVENTQR ATTORN EV 24o. iLLUWHNfiiTlON,

Patented Jan. 30, 1934 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to attachments for machine guns or other types ofautomatic firearms and has for the primary object, the provision of adevice especially adapted for training persons in the art of firingweapons of the above stated character without the use of ammunition.

Another object of this invention is the provision of a light projectingdevice adjustably mounted on an automatic gun and automatically operatedby the actuation of the firing means of the gun to project light rayscovering a given area on a target to indicate clearly to the gunner orobserver the accuracy of the aim taken by the gunner.

With these and other objects in view, this invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is a side elevation illustrating an automatic or machine gun with anattachment applied thereto and constructed in accordance with myinvention.

Figure 2 is a fragmentary top plan View illustrating the same.

Figure 3 is a fragmentary end elevation illustrating the attachmentassociated with the muzzle of the gun.

Figure 4 is a sectional view illustrating the attachment.

Figure 5 is an end elevation partly in section illustrating theattachment removed from the gun.

Figure 6 is a sectional view taken on the line 66 of Figure 4.

Figure '7 is a fragmentary plan view illustrating the attachment.

Referring in detail to the drawings, the numeral 1 indicates aconventional type of machine gun to which an attachment 2 is applied andthe latter consists of a cylindrical housing 3 having one end closed bya slidably mounted illuminating means 4 and the opposite end closed by apartition 5 provided with an opening 6 to receive a portion of a lightprojecting means 7. The housing 3 is supported parallel and to one sideof the barrel of the gun by brackets 8 and 9. The bracket 8 consists ofa circular band 10 mounted on the housing 3 at one end of the latter andcarries spaced arms 11 formed integrally with an adjustable band 12adapted to encircle a cooling jacket for the barrel of the gun as shownin Figure 2.

The bracket 9 consists of an ear 13 suitably secured to the housing 3towhich is detachably and adjustably secured a plate 14 having a slot 15through which extends the muzzle or barrel of the gun 1. The muzzle orbarrel of the gun is equipped with a muzzle gland engaging the walls ofthe end of the housing 3 having the partition 5 and is provided with apartition 17 having an opening 18 receiving a portion of the lightprojecting means 7. The means 7 constitute one section of a field glassprovided with the usual apertured ears 19 to connect said section to itscompanion section. The ears 19 receive a bolt 20 extending through thepartitions 5 and 1'7 where the means 7 is suitably mounted in the hood16 and the housing 3. The eye piece 21 of the section of the field glassis arranged in alignment with an electric la'mp 22 constituting aportion of the illuminating means 14. The electric lamp is mounted in asocket 23 carried by a tubular shield 24 having one end closed as shownat 25. The shield 24 is adjustable lengthwise within the housing 3 tovary the distance between the electric lamp 22 and the light projectingmeans 7. The socket 23 is electrically connected to a normally openedswitch 26 mounted on the firing means of the gun 1. The electricalconnection between the switch 26 and the socket 23 is provided with aplug socket 2'? to receive a conventional type of electrical out-putplug whereby the lamp 22 and the switch are electrified. When the firingmeans of the gun is actuated, the electric lamp 22 is illuminated sothat the light rays from the lamp will be projected by the means 7 ontoa target indicating on the target the accuracy of the aim made by thegunner. The light on the target will remain as long as the trigger orfiring means of the gun is held in an operative position, giving thegunner or the observer time to determine the accuracy with which the gunis aimed. A device of this character will permit efficient training ofpersons in the art of aiming and having a slot to receive the muzzle ofthe gun for adjusting the housing relative to the barrel of the gun, anelectric light mounted in the housing, light projecting means in saidhousing, and a switch actuated by the firing medium of the gun and.electrically connected to the light and to an electrical source.

LEWIE W. MCPHERSON.

